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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <script>
        var num = 3;
        //判断是奇数还是偶数
        if(num % 2 == 0){
            console.log("偶数");
        }else{
            console.log("奇数");
        }
        //三目运算符
        
        //num % 2 == 0 ? console.log("偶数") : console.log("奇数");
        var result = num % 2 === 0 ? "偶数" : "奇数"; 
        console.log(result);
        
    </script>
</body>
</html>